Have you ever committed a sin and regretted it? Well, David in the bible was such a man and God forgive him. What God did for David he can and will do for you.
II Samuel 24:10 (NIV) David was conscience-stricken after he had counted the fighting men, and he said to the LORD, “I have sinned greatly in what I have done. Now, LORD, I beg you, take away the guilt of your servant. I have done a very foolish thing.”